WattAge Tubby Cubby Instructions For Final Assembly - page 27
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SECTION 14: CONTROL THROWS
We recommend setting up the Tubby Cubby EP using the control throws listed below. These control throws are suggested
for initial test-flying because they will allow the airplane to fly smoother and make it easier to control.
WARNING
So that the Tubby Cubby EP will fly straight and level at full power the elevator must be trimmed down 3/8" from center.
This is the "neutral point". The elevator control throws should be measured from the neutral point. If you don't trim the
elevator down 3/8", the airplane will climb excessively after launch or take off or any time you're at full power.
TEST-FLYING
Elevator:
3/4" Up
3/4" Down
Rudder:
7/8" Right
7/8" Left
SECTION 15: PREFLIGHT CHECK & SAFETY
●
Check the operation of the throttle. To do this, do the following:
A) Plug the flight battery into the ESC and turn on the radio system.
WARNING
Do not turn the receiver on unless the transmitter is turned on first. Always turn the transmitter on first. Never allow
hands or clothing to get in the way of the propeller when the radio is turned on. Sudden unwanted radio signals, or turning
the radio on with the throttle stick set at full throttle, can turn the motor on unintentionally. Always make sure that the
throttle control stick is set to idle before turning on the transmitter.
B) When the throttle control stick is at the idle position, the motor should be off. Moving the stick forward
should turn on the motor. Gradually moving the stick to the full forward position should result in the motor running at full
power.
☞
Some ESCs will give you more proportional control than others. Your ESC may also have a manual control
adjustment screw that must be adjusted prior to using the ESC. (Refer to your ESC's operating guide for further
information.)
●
Cycle the flight battery three times. When NiCD and NiMH batteries are new they need to be used 2-3 times before
they will produce their top voltage and duration. To cycle them, simply charge the battery and then run the motor until the
motor stops. Allow the battery and motor to cool, then repeat this procedure two more times.
●
Check the condition of the transmitter batteries. They should be fully charged.
☞
When measuring the control throws, measure from the widest point of the control surfaces.
Once you are familiar with the airplane's flying characteristics, you can increase the control throws to suit your flying
style. We don't suggest increasing the control throws too much though. If you have too much elevator control throw,
applying full "UP" elevator may result in the airplane snap-rolling at the top of loops. If this occurs, reduce the amount
of "UP" elevator control throw. Also, having too much rudder control throw, and input all at once, can cause the
airplane to go into a spin. We think you'll find that the recommendations above will suit most pilots.